An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Daly JM, Xu Y, Levy BT.Daly JM, et al. Among authors: xu y.J Prim Care Community Health. 2017 Oct;8(4):264-277. doi: 10.1177/2150131917705206. Epub 2017 Apr 27.J Prim Care Community Health. 2017.PMID: 28447866Free PMC article.Review.
Levy BT, Daly JM, Schmidt EJ, Xu Y.Levy BT, et al. Among authors: xu y.J Prim Care Community Health. 2012 Jul 1;3(3):180-6. doi: 10.1177/2150131911423103. Epub 2012 Jan 4.J Prim Care Community Health. 2012.PMID: 23803779Free article.
Levy BT, Bay C, Xu Y, Daly JM, Bergus G, Dunkelberg J, Moss C.Levy BT, et al. Among authors: xu y.J Med Screen. 2014 Sep;21(3):133-43. doi: 10.1177/0969141314541109. Epub 2014 Jun 23.J Med Screen. 2014.PMID: 24958730Free PMC article.
Xu Y, Levy BT, Daly JM, Bergus GR, Dunkelberg JC.Xu Y, et al.BMC Health Serv Res. 2015 Apr 23;15:175. doi: 10.1186/s12913-015-0841-0.BMC Health Serv Res. 2015.PMID: 25902770Free PMC article.